Satco Nuvo 100W Equivalent Warm White A19 Medium Clear LED Light Bulb (4-Pack) B&K ruler markings are on the

ruler markings are on the front of the blades

Round drive-in latch

600-4 square shank with keystone tip

while the dust port elbow systematically redirects dust to a container for easy cleanup

Satco Nuvo 100W Equivalent Warm White A19 Medium Clear LED Light Bulb (4-Pack) B&K ruler markings are on theLED (light emitting diode) filament light bulbs. Direct replacement for incandescent lamps, but much more energy efficient. LED with a traditional incandescent look and feel. Dimmable. Ideal for everyday household use. 90 CRI (color rendering index). Lawful for sale in California. 320 degree beam angle, 15,000 hour average lifespan. Wet location approved for totally enclosed fixtures. c UL us listed. 3 year warranty.